$Measurement of the eta_b(1S) mass and the branching fraction for Upsilon(3S) --> gamma eta_b(1S)$

Measurement of the eta_b(1S) mass and the branching fraction for Upsilon(3S) --> gamma eta_b(1S)

We report evidence for the ground state of bottomonium, eta_b(1S), in the radiative decay Upsilon(3S) --> gamma eta_b in e^+e^- annihilation data taken with the CLEO III detector. Using 6 million Upsilon(3S) decays, and assuming Gamma(eta_b) = 10 MeV/c^2, we obtain B(Upsilon(3S) --> ga...

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Bibliografiske detaljer
Main Authors:	Collaboration, TCLEO, Bonvicini, G, Cinabro, D, Lincoln, A, Smith, M, Zhou, P, Zhu, J, Naik, P, Rademacker, J, Asner, D, Edwards, K, Reed, J, Robichaud, A, Tatishvili, G, White, E, Briere, R, Vogel, H, Onyisi, P, Rosner, J, Alexander, J, Cassel, D, Ehrlich, R, Fields, L, Galik, R, Gibbons, L
Format:	Journal article
Udgivet:	2009

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